Concrete-block-forming machine.



PATENTED SEPT. 26, 1905.

A. A. PAULY. CONCRETE BLOCK FORMING MACHINE.

APPLICATION FILED JULY 10 1905.

fl u. 5 0a 9 A a M 1 w w 1. u .1 o 6 /V UNITED s-TATEsY PATENT QFFIGE.

Specification of Letters Patent.

. Patented Sept. 26, 1905,

Application filed July 10. 1905. Serial No. 268,994.

-/.'n all whom, it may concern:

, Be it known that L ALBER'T A. PAULY, a citizen of the United States ofAmerica. residing at Youngstown, in the county of Mahoning and State ofOhio, have invented certain new and useful Improvements inConcreteBlock-Forming Machines, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements inconcrete-block-forming machines; and the invention relates moreparticularly to mechanism for compressing concrete.

The object of the present invention is to provide novel means forcompressing concrete or the like substance, and to this end I havedevised novel mechanism for raising and lowering a plunger adapted tocompress concrete.

The mechanism is particularly adapted for that type ofmachinesillustrated and described in my pending application for patent,-filed June 24, 1905, Serial No. 266,791, wherein aconcrete-block-forming machine is set forth for rapidly manipulatingmolds or .cribs for forming concrete blocks; but I do not careto confinemyself to this type of machine, as it is readily applicable to othertypes.

The construction entering into the mechanism will be hereinafter morefully described and then specifically pointed out in the claims, and,referring to the-drawings accompanying this application, like numeralsof reference designate corresponding parts throughout the several views,in which Figure 1 is a side elevation of my improved mechanism asapplied to a machine. Fig; 2 is a plan of the same. Fig. 3 is ahorizontal sectional view taken on the line we: of Fig. 1, the mechanismbeing disconnected from the machine; and Fig. 4 is an enlarged elevationof a portion of the plunger.

To put my invention into practice, I have illustrated a framework- 1 of,my improved machine as set forth in the application above mentioned,this frameworkconsisting of a rectangular frame having rollers 2journaled therein, said frame being supported by suitable legs 3. Uponthese rollers the molds filled with concrete are moved back and forth tobe compressed to form blocks, and the present invention resides in anovel form of compressor which I use in connection with the framework 1.p

- Upon the framework 1, preferably central thereof,'I mount fourstandards 4:, these standards having their lower ends secured to theedges of the framework 1 by suitable brackets 5 5, while theupper endsof said standards are connected together and braced by a plate 6.Slidably mounted upon the standards 4 is a substantially H shaped frame7, the bosses- 8-8 of which slide upon the standards 1. The frame 7 isprovided with an elongated opening 9, and journaled transversely of saidframe is a shaft 10,'Wl1lCl1 passes through the sides of said opening-Mounted upon this shaft within the opening is a toothed wheel 11,

- adapted to engage with a depending rack-bar 12, carried by the plate6. The ends of the shaft 10 are provided with suitable crankhandles 14:14, whereby the shaft 10 can be rotated. Upon the frame 7 adjacent tothe toothed Wheel 11 is pivotally mounted a gravity-pawl 15, adapted tonormally engage the toothed wheel 11 and prevent it from rotatingrearwardly until the pawl is elevated.

Each one of the bosses 8 is provided with an inwardly-depending arm 16,the lower ends of which are bent outwardly and .pierced, as indicated at17, in order that a plate 1-8 can be secured to the ends of the arms 16by bolts and nuts 19.

The frame 7 together with the arms 16 and the plate 18, forms avertically-reciprocating framework or plunger which is manually actuatedby rotating the shaft 10 when it is desired to elevate the plunger, itonly being necessary to press downwardly upon the loose end of the pawl15 torelease the toothed wheel 11 and permit the plunger to descend.

In operation the mold filled with the concreteor substance to becompressed is moved upon the rollers 2 beneath the plunger, at whichtime the pawl 15 is released and the plunger permitted to descend intoengagement with the concrete. By the rotating of the shaft 10 -in theproper direction the plunger can be forced into further engagement withthe concrete to compress the same; but when the plunger is made of-asuflicient weight its own descent will be sufficient to compress theconcrete into the desired form.

I do not care to confine myselfto manually manipulating the plunger, asa suitable engine or motor may be employed for accomplishing the sameresult.

It will be noted that various changes may i be made in the details ofconstruction without departing from the spirit and scope of theinvention.

V hat 1 claim, and desire to secure by Letters Patent, is

l. The combination with a frame having rollers journaled therein, ofstandards carried by said frame, a plate connecting said standardstogether, a frame slidably mounted upon said standards, a plungercarried by said standards, a shaft journaled in said frame and havingsuitable cranlvhandles, a toothed wheel mounted upon said shaft, a rackcarried by said plate and meshing with said toothed wheel, a pawlpivotally mounted upon said frame and normally engaging said toothedWheel, substantially as described.

2. The combination with a frame having rollers journaled therein, ofstandards carried by said frame, a racl -bar carried by said standards,a frame slid-ably mounted upon said standards, a plunger carried by saidframe, a toothed wheel journaled in said frame and meshing with saidrack-bar, means to rotate said toothed wheel and means to norm ally holdsaid wheel in a locked position, substantially as described.

3. The combination with a frame having rollers journaled therein, ofstandards carried by said frame, a frame slidably mounted upon saidstandards,a plunger carried by said frame, means to elevate said frame,and means to lock said frame in an elevated position, substantially asdescribed.

4. Mechanism of the character described consisting of standards, arack-bar carried by said standards, a frame slidably mounted upon saidstandards, a plunger carried by said frame, a toothed wheel journaled insaid frame, and meshing with said rack-bar, means to rotate said toothedwheel and means to lock said toothed wheel in a fixed position,substantially as described.

In testimony whereof I afiix my sigllaturc in the presence of twowitnesses.

ALBE HIT A. PAULY. itnesses:

DAVID F. GRIFFITH, HIRAM G. Brn.

